was a really good friend. next. all throughout high school we hung out. >> heroin's increasing toll on america. and later...? >> in three more years, star trek is going to be celebrating its golden anniversary.,, [ female announcer ] new nature valley soft-baked oatmeal squares. hearty oatmeal now softly baked with a drizzle of cinnamon. it's a brand-new take on a morning classic. soft-baked oatmeal squares. new from nature valley. ♪ you have to let me know [ female announcer ] when sweet and salty come together, the taste is irresistible. sweet and salty nut bars by nature valley. nature at its most delicious. >> osgood: no parents want to believe their child could be hooked on heroin. so it's always a shocking discovery when they find out. it does happen every day and sometimes in places where you would least expect it. our colleagues at "48 hours" have spent the last few months investigating heroin addiction in a small town in illinois. our cover story is reported now by maureen maher. >> it's thursday afternoon in the levy chicago suburb of naperville, illinois. >> i will be home later.